Hi, I have written the code of checking already, but I have got two problems here.
1. I don't know why when I enter the number in, when it prints out the number, it becomes smilies or some kind of maths code. Please tell me what I have done wrongly and how should I correct it.
2. I don't know whether my checking part can really check the numbers have repeated or not. Please help me to have a look at it.
Thanks.
The following is my code:
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int h,i,j,k,p,r,s,x,y,z;
char matrix[10][10],answer[10][10],box[10];
char filename[30], filename1[30];
FILE *fp, *fp1, *fp2;
void welcome(void);
void rules(void);
void level(void);
void board(void);
void reprint(void);
void enter(void);
void check(void);
void repeat(void);
void choice(void);
void action(void);
void printans(void);
void compare(void);
void printboth(void);
void save(void);
main()
{
welcome();
rules();
}
void welcome()
{
printf("Welcome to Sudoku Game Version 2.0.0.6!\n\n");
printf("Thanks for playing this game!\n\nHope you enjoy!\n");
}
void rules()
{
printf("\nRules to play:\n");
printf("Enter a numerical digit from 1 through 9 starting with various digits given in some cells.\n");
printf("Each row, column, and cell must contain only one instance of each numeral.\n");
printf("Are you ready for the game? (1-Yes, 0-No)\n");
scanf("%d", &x);
if(x==1)
level();
else
exit(1);
}
void level()
{
printf("Which level do you want to play? (1-simple, 2-medium, 3-hard)\n");
scanf("%d", &y);
switch(y)
{
case 1:
printf("Please choose which puzzle you want to play!\n");
printf("Enter a no within 1-10. Add .txt after the no.\n");
printf("Puzzle to play: (Enter no, eg. 1.txt)\n");
scanf("%s", filename);
board();
break;
case 2:
printf("Please choose which puzzle you want to play.\n");
printf("Enter a no within 11-20. Add .txt after the no.\n");
printf("Puzzle to play: (Enter no, eg. 11.txt)\n");
scanf("%s", filename);
board();
break;
case 3:
printf("Please choose which puzzle you want to play.\n");
printf("Enter a no within 21-30. Add .txt after the no.\n");
printf("Puzzle to play: (Enter no, eg. 21.txt)\n");
board();
break;
default:
printf("Wrong Entering!\nNo must be 1,2 or 3!\n");
level();
fclose(fp);
}
}
void board()
{
int d;
fp=fopen(filename,"r");
if(fp==NULL)
{
printf("Cannot open file!\n");
level();
}
while((z=fgetc(fp))!=EOF){
printf("|-|-|-|-|-|-|-|-|-|\n");
for(i=1;i<10;i++)
{
for(j=1;j<=10;j++)
{
z = fgetc(fp);
printf("|%c",z);
matrix[i][j] = z;
}
for(d=i;d%3==0;d++)
{
if(i!=9)
printf("|-|-|-|-|-|-|-|-|-|\n");
}
}
printf("\n");
printf("|-|-|-|-|-|-|-|-|-|\n");
}
enter();
}
void reprint()
{
int d;
printf("|-|-|-|-|-|-|-|-|-|\n");
for(i=1;i<10;i++)
{
for(j=1;j<=10;j++)
{
printf("|%c",matrix[i][j]);
}
for(d=i;d%3==0;d++)
{
if(i!=9)
printf("|-|-|-|-|-|-|-|-|-|\n");
}
}
printf("\n");
printf("|-|-|-|-|-|-|-|-|-|\n");
}
void enter()
{
int a,b,c;
char v;
printf("Enter the position that you want to enter numbers: (eg. 1,1)\n");
scanf("%d,%d", &a,&b);
if(a<0 || a>10)
{
if(b<0 || b>10)
{
printf("Wrong Entering!\n");
printf("You should enter position that is from 1-9!\n");
printf("Please enter the position again!\n");
reprint();
enter();
}
}
if(matrix[a][b]!=' ')
{
printf("Wrong Entering!\n");
printf("Position that entered should be without numbers!\n");
printf("Please enter the position again!\n");
reprint();
enter();
}
if(matrix[a][b]==' ')
{
printf("Enter the number that you want to put at the position:\n");
scanf("%d", &c);
if(c<0 || c>10)
{
printf("Wrong entering!\nNumber should be 1-9!\n");
reprint();
enter();
}
else
{
int v = c;
matrix[a][b] = v;
reprint();
for(i=1;i<10;i++)
{
for(j=1;j<10;j++)
{
if(matrix[i][j]!=0)
check();
}
}
}
}
}
void check()
{
int e=0,q,m,n;
/*check each row*/
for(i=1;i<10;i++)
{
for(j=1;j<10;j++)
{
for(k=1;k<10;k++)
{
if(matrix[i][j]==k)
{
box[k]=k;
h += box[k];
}
}
if(h!=55)
repeat();
}
}
/*check each column*/
for(j=1;j<10;j++)
{
for(i=1;i<10;i++)
{
for(k=1;k<10;k++)
{
if(matrix[i][j]==k)
{
box[k]=k;
h += box[k];
}
}
if(h!=55)
repeat();
}
}
/*check each cell*/
for(i=1;i<10;i*=3)
{
for(j=1;j<10;j*=3)
{
do{
for(m=1;m<4;m++)
{
for(n=1;n<4;n++)
{
for(k=1;k<10;k++)
{
if(matrix[m][n]==k)
box[k]=k;
else
{
e++;
if(e>10)
repeat();
}
h+=box[k];
if(h!=55)
repeat();
}
}
}
}while(i%3==0);
}
}
choice();
}
void repeat()
{
printf("Number has repeated!\n");
reprint();
enter();
}
void choice()
{
printf("What do you want to do now? (1-View answer, 2-Save, 3-Exit, 4-New game)\n");
scanf("%d", &y);
switch(y)
{
case 1:
printans();
break;
case 2:
save();
break;
case 3:
exit(1);
break;
case 4:
level();
break;
default:
printf("Wrong entering!\n");
choice();
}
}
void action()
{
printf("What do you want to do now? (1-Save, 2-Return, 3-Exit, 4-New game)\n");
scanf("%d", &y);
switch(y)
{
case 1:
save();
break;
case 2:
return;
case 3:
exit(1);
case 4:
level();
break;
default:
printf("Wrong entering!\n");
action();
}
}
void printans()
{
int f,t,u;
t = strlen(filename);
strncpy(filename1, filename, t-4);
fp2=filename1;
u = fgetc(fp2);
u += 100;
strncpy(filename1, u, 3);
strncat(filename1, ".txt", 4);
fp1=fopen(filename1,"r");
if(fp1==NULL)
{
printf("please wait...\nCalculating the answer.\n");
printans();
}
while((p=fgetc(fp1))!=EOF)
{
printf("|-|-|-|-|-|-|-|-|-|\n");
for(r=1;r<10;r++)
{
for(s=1;s<=10;s++)
{
p = fgetc(fp1);
printf("|%c",p);
answer[r][s] = p;
}
for(f=i;f%3==0;f++)
{
if(r!=9)
printf("|-|-|-|-|-|-|-|-|-|\n");
}
}
printf("\n");
printf("|-|-|-|-|-|-|-|-|-|\n");
}
compare();
action();
fclose(fp1);
}
void compare()
{
int g;
for(r=1;r<10;r++)
{
for(s=1;s<10;s++)
{
r=i;
s=j;
if(answer[r][s]==matrix[i][j])
g+1;
}
}
printf("You have %d mark(s).\n", g);
}
void printboth()
{
int d,f;
printf("Sudoku puzzle\n");
reprint();
printf("Solved sudoku\n");
printans();
compare();
action();
}
void save()
{
printf("Save puzzle as: (Enter filename, eg. puzzle1.txt)\n");
scanf("%s", filename1);
fp2=fopen(filename1,"w");
if(fp2==NULL)
{
printf("Cannot open file!\n");
choice();
}
printf("Save method: 1-Only puzzle, 2-Only answer, 3-Puzzle and answer\n");
scanf("%d", &y);
switch(y)
{
case 1:
board();
break;
case 2:
printans();
break;
case 3:
printboth();
break;
default:
printf("Wrong entering!\n");
exit(1);
}
action();
}Thanks, friends!
